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Telephone Support
Western Photometric Laboratories (WPL) maintains a state-of-the-art technical support department. Our personnel have the latest equipment right in
front of them so they can help find the answer to your questions. WPL Technical Support is located in Chino, California, in the Pacific time zone.
Product Support Hours
Monday - Friday • 8:30 AM to 4:30 PM
Call 1-909-597-4889 during these times.
Fax Support
Product Support can receive questions by fax at 1-909-597-3043.
E-Mail Support
If you can't find the answer already on file, you can E–Mail our technical support department at wplsupport@dupreeinc.com. Please include the
correct product model along with
a detailed description of the problem. All inquiries are answered in the order received.
Our Service Center Address
Western Photometric Laboratories
Service Department
14395 Ramona Avenue
Chino, CA 91710
For Warranty Repairs and Service
*IMPORTANT*
Have your serial number or invoice number ready before you call. We can use this number
to look up your records and verify and correct any
inaccuriacies in your file (making sure we have the correct shipping address, etc.). Do not send any products to WPL without receiving a
Return Material Authorization (RMA) number first; otherwise the shipment will be refused. To obtain warranty repair authorization,call us at
1-909-597-4889 with the following information ready:
• The product's serial number
• Your name and address
• Your daytime voice phone number
• A description of the problem
• A copy of the original sales receipt
For Walk-in Service
You may drop off a unit in person during business hours. For faster service, call ahead of time for an RMA number.
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